Method or process of treating automobile-tires and the inner tubes thereof.



` in. i" i m 'FRANK S. Willbllll, 0F PHILADELPHIA, FENNSYLVANIA.

METHOD @lill l-WECESS F IREATING AUTOMGBILE-TIRES AND THE lINIl'EIEt TUBES llatented Aug. 2l, 1917..

To all whom it may concern .1

Be it known that l', FRANK lil. l/VeL'roN, a citizen of thel United States, residing in lliiladelphia, lennsylvania, have invented an lmproved Method or Process o: Treat-i ing Automobilelires and. the limer Tubes Ther-cof, of which the following is a specilication.

lli/ly invention relates to the preservation of fibrous or fabric structures with which rubber or a rubber-containing material may or may not be combined; and the object of my invention is to provide a special method of treating automobile tire shoes of the usual type receiving,a an inner inliatable tube, (the Walls of which. tires are made up of a plurality of layers of fibers or fabric or fibrous cords and rubber, and a cementitious` body,) v

for the purpose of lubricating and rendering pliable the fibers, fabric or cords employed as Well as for the purpose of repelling aquev ous moisture and reducing heat; thereby increasing the Wearing properties of the tires and greatly reducing the danger of blowouts due to the usual Wear and tear to which' they are' subjected. A further object of my invention is to effect the preservation of the inner tubes of rubber employed with such tire shoes; the material employed for the purpose of preserving the tire shoes having a benecial and preservative eliect upon such inner rubber tubes.

l am not advised as to just what happens to the fabric, fibers or cords, in the carcass or body of the tire shoe and the actual reason for it giving Way, although it can readily be understood that under the constant motion of the tire When in use, the strands of the fibers, fabric or cords employed are being' subjected to strains in all directions, with the result that sooner or later they give Way and the tire breaks down. Such condition is recognized by all tire manufacturers, andv constant ed'orts are directed to Ward the production of a tire that Will avoidthis defect. The usual methods, so far as l am advised, have been to increase the Weight of the fabric employed or to' so manipulate the strands or fibers making up the same or employed as cords as to increase their strength and reduce their liability to break under the usual Wear and tear accompanyingI the conditions of use. ln all preliability,l

Serial Ilo. 162,098.

shoe dry out, become broken; coarse in tex-A ture, and cause friction between the Wall of the shoe and the inner tubewugh frlction not only weakens the inner tubebttlso the tire shoe and it eventually breaks; such rupture not being able to'vvithstand the pressure of air Within the inner tube, a blowout7 occurs, which destroys both inner tube and shoe.

' These conditions have led me to the belief that if the individual strands or libers of the fabric or cords as Well as the surface of the same Were properly lubricated and made pliable, the tire shoe would be benefited and the life of such shoe Would be materially increased. As the treatment I propose will require the application of the lubricating medium to the inner surface of the tire shoe, it will come in contact with the inner tube and the latter Will also be benefited; the

lubricant providing a protective layer or.

coating; for the saine which` reduces the friction between the tube and the tire shoe.

fn my lJatent No. l l,223,302, dated April. 17, 1917, l have described the use of a non-- drying oleaginous body of animal origin Which may be employed for the purpose; and in an application liled April 12, 1917, Serial No. '161,435 l have described the use of an oleaginous vegetable product available for the purpose, and it is essential in the carrying out of the process constituting my invention that a substantially non-drying or a semi-drying oleaginous material, or a suitable combination of both, be employed.

Since beneficial results may dow from the use of other forms of oleaginous materials, fl propose to use an oleaginous body having a mineral base; that is to say2 a product. of petroleum or a mineral oil or oils of a similar character, or a combination of an oleaginous body having` a mineral base with otherv i tective layer or, coating voleaginous bodies;

semi-drying, and will be capable of performing the function desired; that is to say, of properly lubricating thefibrous portion .of an automobile tire and of acting as a preservative thereof. As in my patent and the prior application referred to, the treatment i propose includes the application of the oleaginous preserving and lubricating medium to the inner surface of the tire shoe where it will come in contact with the inner tube, be benefited; the lubricant providing a profor the same which reduces the friction between said tube and :the inner Wall of the tire shoe.

ln carryingmy invention into effect, l propose to treat new tires as well as tires which have been in use, whether they have run the guaranteed mileage or not, and in practice l propose to treat tire slices by applyinga su 'cient quantity of the oleaginous material to the inner wall of the `tire shoe to not only penetrate eacl'rstrand of the fabric, fiber or cord included in or comprising the `wall of such tire shoe in order to preserve, lubricate and render the same plitube,

wall of the shoe; forming a ing film which acts as able, but also enough to permit of the formation of a coating on the inner rubber which coating glazes suoli inner tube and protects it from direct contact with the friction-reduca lubricant and protector for both shoe and inner tube.

While I am not specifically advised as to what actually occurs in the wall of the carcass or body of the shoe due to the oilinc,l treatment, l believe that the application of oil or other oleaginous body has the effect of lubricating the fibers and strands of the fabric, renderingthem pliable, and providing them-with a certain amount of elasticity and destroying their tendency to break and the latter will also i-aeaera short, and at the same time 'reducing heat and repelling aqueous moisture.

l prefer to employ a thickened oil having a mineral base, and in all instances l propose to use a substantially non-drying` or a semi-drying oleaginous4 body, or a combination thereof.

l claim:

l. The process of treating automobile tires and inner tubes employed therewith, which comprises the application of an oleaginous product having a mineral base to the inner wall of the tire shoe with which the inner tube contacts for the impregnation of the shoe therewith and the surface coat- 2. The process of treating automobile tires and inner tubes employed therewith, which'compriscs the application of a mineral oil to the inner wall of the tire shoe with which the inner tube contacts for the impregnation of the shoe therewith and the surface coating of said inner tube.

3. The process of treating automobile tires and the inner tubes employed therewith` .which comprises the applicationcf a thickened mineral oil to the inner wall of the tire shoe with which the inner tube contacts for the impregnation of the shoe therewith and the surface coating of said inner tube.

ft. rlhe combination with the shoe of an automobile tire and an inner tube employed therewith, of an oleaginous proc1 uct having a mineral base interposed between said shoe and the inner tube and impregnating the body of said shoe.

5. rlhe combination with the shoe of an automobile tire and an inner tube employed therewith, of a layer or body of mineral oil interposed between said shoe and the inner tube and impregnating the body of said shoe.

6, The combination with a shoe of an automobile tire and an inner tube employed therewith, of a body or layer of a thickened mineral oil interposed between said shoe and the inner tube and impregnating the body of said shoe.,

in witness whereof l aliiX my signature.

FRANK S. VVLTON. 

